It's my idea of what DNA would look like
in a silicon-based life form.
The Big Bang Theory Season 1, Episode 4
We do share DNA.
The Big Bang Theory Season 1, Episode 15
Oh, sure, '’cause
Sheldon'’s DNA plus my DNA
The Big Bang Theory Season 12, Episode 3
he now has Leonard Nimoy's DNA.
The Big Bang Theory Season 12, Episode 24
except that this is from my DNA,
so this is like me-monkeys.
The Big Bang Theory Season 10, Episode 8